This name is a synonym of Acalypha pygmaea A.Rich..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 334) with original publication details: Prodr. 15(2): 880 1866.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:1167-2.
This name was in version 1 of The Plant List, record kew-334, and has not been changed.